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                <h1 id="firstHeading" class="firstHeading">Convenience aliases for containers using polymorphic allocators <span class="t-mark-rev t-since-libfund-ts t-mark-ts">(library fundamentals TS)</span>
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<a href="../memory.html" title="cpp/experimental/memory" class="mw-redirect"> Polymorphic allocator library</a><div class="t-navbar-menu"><div>
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<p>The following convenience aliases and alias templates for containers using polymorphic allocators are defined in the <code>std::experimental::pmr</code> namespace.
</p>
<table id="toc" class="toc"><tr><td>
<div id="toctitle"><h2>Contents</h2></div>
<ul>
<li class="toclevel-1 tocsection-1"><a href="pmr_container.html#Strings"><span class="tocnumber">1</span> <span class="toctext">Strings</span></a></li>
<li class="toclevel-1 tocsection-2"><a href="pmr_container.html#Sequence_containers"><span class="tocnumber">2</span> <span class="toctext">Sequence containers</span></a></li>
<li class="toclevel-1 tocsection-3"><a href="pmr_container.html#Associative_containers"><span class="tocnumber">3</span> <span class="toctext">Associative containers</span></a></li>
<li class="toclevel-1 tocsection-4"><a href="pmr_container.html#Unordered_associative_containers"><span class="tocnumber">4</span> <span class="toctext">Unordered associative containers</span></a></li>
<li class="toclevel-1 tocsection-5"><a href="pmr_container.html#match_results"><span class="tocnumber">5</span> <span class="toctext">match_results</span></a></li>
</ul>
</td></tr></table>
<h3>
<span class="editsection">[<a href="http%3A//en.cppreference.com/mwiki/index.php" title="Edit section: Strings">edit</a>]</span> <span class="mw-headline" id="Strings"> Strings </span>
</h3>
<table class="t-dsc-begin">

<tr class="t-dsc-hitem">
<td>  Alias/alias template
</td>
<td>  Alias for
</td>
</tr>
 

<tr class="t-dsc-header">
<td colspan="2"> <div>Defined in header <code>&lt;experimental/string&gt;</code> </div>
</td>
</tr>

<tr class="t-dsc">
<td> <span id="basic_string"></span><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT,<br>
<p>         <span class="kw1">class</span> traits<span class="sy1">=</span><a href="../../string/char_traits.html"><span class="kw1068">std::<span class="me2">char_traits</span></span></a><span class="sy1">&lt;</span>charT<span class="sy1">&gt;&gt;</span> <br>
<span class="kw1">using</span> basic_string <span class="sy1">=</span></p></span>

</td>
<td>  <span class="mw-geshi cpp source-cpp"><a href="../../string/basic_string.html"><span class="kw1047">std::<span class="me2">basic_string</span></span></a><span class="sy1">&lt;</span>charT, traits,<br>
<p>    polymorphic_allocator<span class="sy1">&lt;</span>charT<span class="sy1">&gt;&gt;</span><span class="sy4">;</span></p></span>

</td>
</tr>

<tr class="t-dsc">
<td> <span id="string"></span><span class="mw-geshi cpp source-cpp"><span class="kw1">using</span> string <span class="sy1">=</span></span>
</td>
<td>  <span class="mw-geshi cpp source-cpp">pmr<span class="sy4">::</span><span class="me2">basic_string</span><span class="sy1">&lt;</span><span class="kw4">char</span><span class="sy1">&gt;</span><span class="sy4">;</span></span>
</td>
</tr>


<tr class="t-dsc">
<td> <span id="wstring"></span><span class="mw-geshi cpp source-cpp"><span class="kw1">using</span> wstring <span class="sy1">=</span></span>
</td>
<td>  <span class="mw-geshi cpp source-cpp">pmr<span class="sy4">::</span><span class="me2">basic_string</span><span class="sy1">&lt;</span><span class="kw4">wchar_t</span><span class="sy1">&gt;</span><span class="sy4">;</span></span>
</td>
</tr>


<tr class="t-dsc">
<td> <span id="u16string"></span><span class="mw-geshi cpp source-cpp"><span class="kw1">using</span> u16string <span class="sy1">=</span></span>
</td>
<td>  <span class="mw-geshi cpp source-cpp">pmr<span class="sy4">::</span><span class="me2">basic_string</span><span class="sy1">&lt;</span><span class="kw4">char16_t</span><span class="sy1">&gt;</span><span class="sy4">;</span></span>
</td>
</tr>


<tr class="t-dsc">
<td> <span id="u32string"></span><span class="mw-geshi cpp source-cpp"><span class="kw1">using</span> u32string <span class="sy1">=</span></span>
</td>
<td>  <span class="mw-geshi cpp source-cpp">pmr<span class="sy4">::</span><span class="me2">basic_string</span><span class="sy1">&lt;</span><span class="kw4">char32_t</span><span class="sy1">&gt;</span><span class="sy4">;</span></span>
</td>
</tr>

</table>
<h3>
<span class="editsection">[<a href="http%3A//en.cppreference.com/mwiki/index.php" title="Edit section: Sequence containers">edit</a>]</span> <span class="mw-headline" id="Sequence_containers"> Sequence containers </span>
</h3>
<table class="t-dsc-begin">

<tr class="t-dsc-hitem">
<td>  Alias template
</td>
<td>  Alias for
</td>
</tr>
 

<tr class="t-dsc-header">
<td colspan="2"> <div>Defined in header <code>&lt;experimental/vector&gt;</code> </div>
</td>
</tr>

<tr class="t-dsc">
<td> <span id="vector"></span><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">using</span> vector <span class="sy1">=</span></span>
</td>
<td>  <span class="mw-geshi cpp source-cpp"><a href="../../container/vector.html"><span class="kw1071">std::<span class="me2">vector</span></span></a><span class="sy1">&lt;</span>T, polymorphic_allocator<span class="sy1">&lt;</span>T<span class="sy1">&gt;&gt;</span><span class="sy4">;</span></span>
</td>
</tr>


<tr class="t-dsc-header">
<td colspan="2"> <div>Defined in header <code>&lt;experimental/deque&gt;</code> </div>
</td>
</tr>

<tr class="t-dsc">
<td> <span id="deque"></span><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">using</span> deque <span class="sy1">=</span></span>
</td>
<td>  <span class="mw-geshi cpp source-cpp"><a href="../../container/deque.html"><span class="kw1072">std::<span class="me2">deque</span></span></a><span class="sy1">&lt;</span>T, polymorphic_allocator<span class="sy1">&lt;</span>T<span class="sy1">&gt;&gt;</span><span class="sy4">;</span></span>
</td>
</tr>


<tr class="t-dsc-header">
<td colspan="2"> <div>Defined in header <code>&lt;experimental/forward_list&gt;</code> </div>
</td>
</tr>

<tr class="t-dsc">
<td> <span id="forward_list"></span><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">using</span> forward_list <span class="sy1">=</span></span>
</td>
<td>  <span class="mw-geshi cpp source-cpp"><a href="../../container/forward_list.html"><span class="kw1073">std::<span class="me2">forward_list</span></span></a><span class="sy1">&lt;</span>T, polymorphic_allocator<span class="sy1">&lt;</span>T<span class="sy1">&gt;&gt;</span><span class="sy4">;</span></span>
</td>
</tr>


<tr class="t-dsc-header">
<td colspan="2"> <div>Defined in header <code>&lt;experimental/list&gt;</code> </div>
</td>
</tr>

<tr class="t-dsc">
<td> <span id="list"></span><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">using</span> list <span class="sy1">=</span></span>
</td>
<td>  <span class="mw-geshi cpp source-cpp"><a href="../../container/list.html"><span class="kw1074">std::<span class="me2">list</span></span></a><span class="sy1">&lt;</span>T, polymorphic_allocator<span class="sy1">&lt;</span>T<span class="sy1">&gt;&gt;</span><span class="sy4">;</span></span>
</td>
</tr>
</table>
<h3>
<span class="editsection">[<a href="http%3A//en.cppreference.com/mwiki/index.php" title="Edit section: Associative containers">edit</a>]</span> <span class="mw-headline" id="Associative_containers"> Associative containers </span>
</h3>
<table class="t-dsc-begin">

<tr class="t-dsc-hitem">
<td>  Alias template
</td>
<td>  Alias for
</td>
</tr>
 

<tr class="t-dsc-header">
<td colspan="2"> <div>Defined in header <code>&lt;experimental/map&gt;</code> </div>
</td>
</tr>

<tr class="t-dsc">
<td> <span id="map"></span><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Key, <span class="kw1">class</span> T, <br>
<p>         <span class="kw1">class</span> Compare<span class="sy1">=</span><a href="../../utility/functional/less.html"><span class="kw883">std::<span class="me2">less</span></span></a><span class="sy1">&lt;</span>Key<span class="sy1">&gt;&gt;</span> <br>
<span class="kw1">using</span> map <span class="sy1">=</span></p></span>

</td>
<td>  <span class="mw-geshi cpp source-cpp"><a href="../../container/map.html"><span class="kw1077">std::<span class="me2">map</span></span></a><span class="sy1">&lt;</span>Key, T, Compare,<br>
<p>    polymorphic_allocator<span class="sy1">&lt;</span><a href="../../utility/pair.html"><span class="kw906">std::<span class="me2">pair</span></span></a><span class="sy1">&lt;</span><span class="kw4">const</span> Key, T<span class="sy1">&gt;&gt;&gt;</span><span class="sy4">;</span></p></span>

</td>
</tr>

<tr class="t-dsc">
<td> <span id="multimap"></span><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Key, <span class="kw1">class</span> T, <br>
<p>         <span class="kw1">class</span> Compare<span class="sy1">=</span><a href="../../utility/functional/less.html"><span class="kw883">std::<span class="me2">less</span></span></a><span class="sy1">&lt;</span>Key<span class="sy1">&gt;&gt;</span> <br>
<span class="kw1">using</span> multimap <span class="sy1">=</span></p></span>

</td>
<td>  <span class="mw-geshi cpp source-cpp"><a href="../../container/multimap.html"><span class="kw1079">std::<span class="me2">multimap</span></span></a><span class="sy1">&lt;</span>Key, T, Compare,<br>
<p>    polymorphic_allocator<span class="sy1">&lt;</span><a href="../../utility/pair.html"><span class="kw906">std::<span class="me2">pair</span></span></a><span class="sy1">&lt;</span><span class="kw4">const</span> Key, T<span class="sy1">&gt;&gt;&gt;</span><span class="sy4">;</span></p></span>

</td>
</tr>


<tr class="t-dsc-header">
<td colspan="2"> <div>Defined in header <code>&lt;experimental/set&gt;</code> </div>
</td>
</tr>

<tr class="t-dsc">
<td> <span id="set"></span><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Key,<br>
<p>         <span class="kw1">class</span> Compare<span class="sy1">=</span><a href="../../utility/functional/less.html"><span class="kw883">std::<span class="me2">less</span></span></a><span class="sy1">&lt;</span>Key<span class="sy1">&gt;&gt;</span> <br>
<span class="kw1">using</span> set <span class="sy1">=</span></p></span>

</td>
<td>  <span class="mw-geshi cpp source-cpp"><a href="../../container/set.html"><span class="kw1075">std::<span class="me2">set</span></span></a><span class="sy1">&lt;</span>Key, Compare,<br>
<p>    polymorphic_allocator<span class="sy1">&lt;</span>Key<span class="sy1">&gt;&gt;</span><span class="sy4">;</span></p></span>

</td>
</tr>

<tr class="t-dsc">
<td> <span id="multiset"></span><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Key,<br>
<p>         <span class="kw1">class</span> Compare<span class="sy1">=</span><a href="../../utility/functional/less.html"><span class="kw883">std::<span class="me2">less</span></span></a><span class="sy1">&lt;</span>Key<span class="sy1">&gt;&gt;</span> <br>
<span class="kw1">using</span> multiset <span class="sy1">=</span></p></span>

</td>
<td>  <span class="mw-geshi cpp source-cpp"><a href="../../container/multiset.html"><span class="kw1076">std::<span class="me2">multiset</span></span></a><span class="sy1">&lt;</span>Key, Compare,<br>
<p>    polymorphic_allocator<span class="sy1">&lt;</span>Key<span class="sy1">&gt;&gt;</span><span class="sy4">;</span></p></span>

</td>
</tr>
</table>
<h3>
<span class="editsection">[<a href="http%3A//en.cppreference.com/mwiki/index.php" title="Edit section: Unordered associative containers">edit</a>]</span> <span class="mw-headline" id="Unordered_associative_containers"> Unordered associative containers </span>
</h3>
<table class="t-dsc-begin">

<tr class="t-dsc-hitem">
<td>  Alias template
</td>
<td>  Alias for
</td>
</tr>
 


<tr class="t-dsc-header">
<td colspan="2"> <div>Defined in header <code>&lt;experimental/unordered_map&gt;</code> </div>
</td>
</tr>

<tr class="t-dsc">
<td> <span id="unordered_map"></span><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Key, <span class="kw1">class</span> T, <br>
<p>         <span class="kw1">class</span> Hash <span class="sy1">=</span> <a href="../../utility/hash.html"><span class="kw926">std::<span class="me2">hash</span></span></a><span class="sy1">&lt;</span>Key<span class="sy1">&gt;</span>, <br>
         <span class="kw1">class</span> Pred <span class="sy1">=</span> <a href="../../utility/functional/equal_to.html"><span class="kw879">std::<span class="me2">equal_to</span></span></a><span class="sy1">&lt;</span>Key<span class="sy1">&gt;&gt;</span> <br>
<span class="kw1">using</span> unordered_map <span class="sy1">=</span></p></span>

</td>
<td>  <span class="mw-geshi cpp source-cpp"><a href="../../container/unordered_map.html"><span class="kw1083">std::<span class="me2">unordered_map</span></span></a><span class="sy1">&lt;</span>Key, T, Hash, Pred,<br>
<p>    polymorphic_allocator<span class="sy1">&lt;</span><a href="../../utility/pair.html"><span class="kw906">std::<span class="me2">pair</span></span></a><span class="sy1">&lt;</span><span class="kw4">const</span> Key, T<span class="sy1">&gt;&gt;&gt;</span><span class="sy4">;</span></p></span>

</td>
</tr>

<tr class="t-dsc">
<td> <span id="unordered_multimap"></span><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Key, <span class="kw1">class</span> T, <br>
<p>         <span class="kw1">class</span> Hash <span class="sy1">=</span> <a href="../../utility/hash.html"><span class="kw926">std::<span class="me2">hash</span></span></a><span class="sy1">&lt;</span>Key<span class="sy1">&gt;</span>, <br>
         <span class="kw1">class</span> Pred <span class="sy1">=</span> <a href="../../utility/functional/equal_to.html"><span class="kw879">std::<span class="me2">equal_to</span></span></a><span class="sy1">&lt;</span>Key<span class="sy1">&gt;&gt;</span> <br>
<span class="kw1">using</span> unordered_multimap <span class="sy1">=</span></p></span>

</td>
<td>  <span class="mw-geshi cpp source-cpp"><a href="../../container/unordered_multimap.html"><span class="kw1084">std::<span class="me2">unordered_multimap</span></span></a><span class="sy1">&lt;</span>Key, T, Hash, Pred,<br>
<p>    polymorphic_allocator<span class="sy1">&lt;</span><a href="../../utility/pair.html"><span class="kw906">std::<span class="me2">pair</span></span></a><span class="sy1">&lt;</span><span class="kw4">const</span> Key, T<span class="sy1">&gt;&gt;&gt;</span><span class="sy4">;</span></p></span>

</td>
</tr>


<tr class="t-dsc-header">
<td colspan="2"> <div>Defined in header <code>&lt;experimental/unordered_set&gt;</code> </div>
</td>
</tr>

<tr class="t-dsc">
<td> <span id="unordered_set"></span><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Key, <br>
<p>         <span class="kw1">class</span> Hash <span class="sy1">=</span> <a href="../../utility/hash.html"><span class="kw926">std::<span class="me2">hash</span></span></a><span class="sy1">&lt;</span>Key<span class="sy1">&gt;</span>, <br>
         <span class="kw1">class</span> Pred <span class="sy1">=</span> <a href="../../utility/functional/equal_to.html"><span class="kw879">std::<span class="me2">equal_to</span></span></a><span class="sy1">&lt;</span>Key<span class="sy1">&gt;&gt;</span> <br>
<span class="kw1">using</span> unordered_set <span class="sy1">=</span></p></span>

</td>
<td>  <span class="mw-geshi cpp source-cpp"><a href="../../container/unordered_set.html"><span class="kw1081">std::<span class="me2">unordered_set</span></span></a><span class="sy1">&lt;</span>Key, Hash, Pred,<br>
<p>    polymorphic_allocator<span class="sy1">&lt;</span>Key<span class="sy1">&gt;&gt;</span><span class="sy4">;</span></p></span>

</td>
</tr>

<tr class="t-dsc">
<td> <span id="unordered_multiset"></span><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Key, <br>
<p>         <span class="kw1">class</span> Hash <span class="sy1">=</span> <a href="../../utility/hash.html"><span class="kw926">std::<span class="me2">hash</span></span></a><span class="sy1">&lt;</span>Key<span class="sy1">&gt;</span>, <br>
         <span class="kw1">class</span> Pred <span class="sy1">=</span> <a href="../../utility/functional/equal_to.html"><span class="kw879">std::<span class="me2">equal_to</span></span></a><span class="sy1">&lt;</span>Key<span class="sy1">&gt;&gt;</span> <br>
<span class="kw1">using</span> unordered_multiset <span class="sy1">=</span></p></span>

</td>
<td>  <span class="mw-geshi cpp source-cpp"><a href="../../container/unordered_multiset.html"><span class="kw1082">std::<span class="me2">unordered_multiset</span></span></a><span class="sy1">&lt;</span>Key, Hash, Pred,<br>
<p>    polymorphic_allocator<span class="sy1">&lt;</span>Key<span class="sy1">&gt;&gt;</span><span class="sy4">;</span></p></span>

</td>
</tr>
</table>
<h3>
<span class="editsection">[<a href="http%3A//en.cppreference.com/mwiki/index.php" title="Edit section: match results">edit</a>]</span> <span class="mw-headline" id="match_results"><code>match_results</code></span>
</h3>
<table class="t-dsc-begin">

<tr class="t-dsc-hitem">
<td>  Alias/alias template
</td>
<td>  Alias for
</td>
</tr>
 

<tr class="t-dsc-header">
<td colspan="2"> <div>Defined in header <code>&lt;experimental/regex&gt;</code> </div>
</td>
</tr>

<tr class="t-dsc">
<td> <span id="match_results"></span><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> BidirIt<span class="sy1">&gt;</span> <br>
<p><span class="kw1">using</span> match_results <span class="sy1">=</span></p></span>

</td>
<td>  <span class="mw-geshi cpp source-cpp"><a href="../../regex/match_results.html"><span class="kw1702">std::<span class="me2">match_results</span></span></a><span class="sy1">&lt;</span>BidirIt,<br>
<p>    polymorphic_allocator<span class="sy1">&lt;</span><a href="../../regex/sub_match.html"><span class="kw1697">std::<span class="me2">sub_match</span></span></a><span class="sy1">&lt;</span>BidirIt<span class="sy1">&gt;&gt;&gt;</span><span class="sy4">;</span></p></span>

</td>
</tr>

<tr class="t-dsc">
<td> <span id="cmatch"></span><span class="mw-geshi cpp source-cpp"><span class="kw1">using</span> cmatch <span class="sy1">=</span></span>
</td>
<td>  <span class="mw-geshi cpp source-cpp">pmr<span class="sy4">::</span><span class="me2">match_results</span><span class="sy1">&lt;</span><span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span><span class="sy1">&gt;</span><span class="sy4">;</span></span>
</td>
</tr>


<tr class="t-dsc">
<td> <span id="wcmatch"></span><span class="mw-geshi cpp source-cpp"><span class="kw1">using</span> wcmatch <span class="sy1">=</span></span>
</td>
<td>  <span class="mw-geshi cpp source-cpp">pmr<span class="sy4">::</span><span class="me2">match_results</span><span class="sy1">&lt;</span><span class="kw4">const</span> <span class="kw4">wchar_t</span><span class="sy2">*</span><span class="sy1">&gt;</span><span class="sy4">;</span></span>
</td>
</tr>


<tr class="t-dsc">
<td> <span id="smatch"></span><span class="mw-geshi cpp source-cpp"><span class="kw1">using</span> smatch <span class="sy1">=</span></span>
</td>
<td>  <span class="mw-geshi cpp source-cpp">pmr<span class="sy4">::</span><span class="me2">match_results</span><span class="sy1">&lt;</span>pmr<span class="sy4">::</span><span class="me2">string</span><span class="sy4">::</span><span class="me2">const_iterator</span><span class="sy1">&gt;</span><span class="sy4">;</span></span>
</td>
</tr>


<tr class="t-dsc">
<td> <span id="wsmatch"></span><span class="mw-geshi cpp source-cpp"><span class="kw1">using</span> wsmatch <span class="sy1">=</span></span>
</td>
<td>  <span class="mw-geshi cpp source-cpp">pmr<span class="sy4">::</span><span class="me2">match_results</span><span class="sy1">&lt;</span>pmr<span class="sy4">::</span><span class="me2">wstring</span><span class="sy4">::</span><span class="me2">const_iterator</span><span class="sy1">&gt;</span><span class="sy4">;</span></span>
</td>
</tr>

</table>

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